Main stud / bolt sealant
Thread Starter
Drifting
Joined: Aug 2001
Posts: 1,606
Likes: 14
From: Vacaville, CA
Main stud / bolt sealant
A lot of discussion on bolt sealant has been discussed recently. What is the best method on installing main studs and bolts into blind tapped holes on a Dart block. I've heard that main studs need to be only finger tight, but do they need any assy grease or locktite of any type???
Le Mans Master
Joined: Feb 1999
Posts: 5,877
Likes: 1
From: Park Ridge IL
Re: Main stud / bolt sealant (BlackRocket)
Since the main and head bolt/stud holes are blind tapped on the Dart block, I just used some ARP assembly lube on the studs. They don't protrude into the water jackets, so you don't need any sealer. Also, as you mentioned, they are only installed in the block finger tight. You can Loctite them into the block if you prefer, but you'll need to install the main caps/heads at the same time and torque them down before the Loctite sets. After the Loctite sets, you can remove the caps/heads if you need to.
Burning Brakes
Joined: Sep 2000
Posts: 1,199
Likes: 1
From: NewCastle IN. USA
Re: Main stud / bolt sealant (BlackRocket)
if there is any possiblity that it goes into a water jacket, then use formagasket no.2
Stud ends that go into the block can use it too. then use the moly lube on the nut end (that should be the only part that moves during torqueing).
I don't recommend the ARP "thread sealer" however their moly lube is fine.
RJ
Stud ends that go into the block can use it too. then use the moly lube on the nut end (that should be the only part that moves during torqueing).
I don't recommend the ARP "thread sealer" however their moly lube is fine.
RJ
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Re: Main stud / bolt sealant (ol,RJ)
What engine bolts are only finger tight :confused: :confused: :confused:
How can this be and what would happen if you torqued them. I must have missed something in engihe 101! Please explain this to me :D
Bill Curlee
How can this be and what would happen if you torqued them. I must have missed something in engihe 101! Please explain this to me :D
Bill Curlee
Le Mans Master
Joined: Feb 1999
Posts: 5,877
Likes: 1
From: Park Ridge IL
Re: Main stud / bolt sealant (Bill Curlee)
Only studs - head studs and main studs are only installed finger tight into the block. After the head or main caps are installed over the studs, then you torque the nuts, after applying the proper assembly lube and in at least 3 steps. ARP also recommends torqueing and untorqueing the fastener 3 times before the fastener is torqued for final assembly. THis ensures the most accurate torque reading - but unfortunately, most machine shops usually don't do it.
